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Add test_pragma_pack

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This commit is contained in:
Peter Dimov
2024-05-14 22:57:20 +03:00
parent b2df302733
commit 6af3cb86f9
3 changed files with 51 additions and 0 deletions
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1
test/CMakeLists.txt
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@@ -19,6 +19,7 @@ boost_test(TYPE run SOURCES test_uuid_2.cpp)
boost_test(TYPE run SOURCES test_alignment.cpp)
boost_test(TYPE run SOURCES test_attribute_packed.cpp)
boost_test(TYPE run SOURCES test_pragma_pack.cpp)
boost_test(TYPE run SOURCES test_data.cpp)
boost_test(TYPE run SOURCES test_comparison.cpp COMPILE_DEFINITIONS BOOST_UUID_REPORT_IMPLEMENTATION=1)

1
test/Jamfile.v2
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@@ -62,6 +62,7 @@ run test_uuid_2.cpp ;
run test_alignment.cpp ;
run test_attribute_packed.cpp ;
run test_pragma_pack.cpp ;
run test_data.cpp ;
# test comparison

49
test/test_pragma_pack.cpp Normal file
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@@ -0,0 +1,49 @@
// Copyright 2024 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/uuid/uuid.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/config/pragma_message.hpp>
#include <cstddef>
#if !defined(__GNUC__) && !defined(_MSC_VER)
BOOST_PRAGMA_MESSAGE( "Test skipped, __GNUC__ and _MSC_VER are not defined" )
int main() {}
#else
using namespace boost::uuids;
#pragma pack( push, 1 )
struct X1
{
unsigned char a;
uuid b;
unsigned char c;
};
struct X2
{
uuid a;
unsigned char b;
unsigned c;
unsigned char d;
};
#pragma pack( pop )
int main()
{
BOOST_TEST_EQ( offsetof(X1, b), 1 );
BOOST_TEST_EQ( sizeof(X1), 18 );
BOOST_TEST_EQ( offsetof(X2, c), 17 );
BOOST_TEST_EQ( sizeof(X2), 22 );
return boost::report_errors();
}
#endif